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SEGMENT INFORMATION
 12 Months Ended
Dec. 31, 2023
Segment Reporting [Abstract]  
Segment Information SEGMENT INFORMATION
 
IDACORP’s only reportable segment is utility operations. The utility operations segment’s primary source of revenue is the regulated operations of Idaho Power. Idaho Power’s regulated operations include the generation, transmission, distribution, purchase, and sale of electricity. This segment also includes income from IERCo, a wholly-owned subsidiary of Idaho Power that is also subject to regulation and is a one-third owner of BCC, an unconsolidated investment.
 
IDACORP’s other operating segments are below the quantitative and qualitative thresholds for reportable segments and are included in the “All Other” category in the table below. This category is comprised of IFS’s investments in affordable housing and other real estate tax credits, Ida-West’s joint venture investments in small hydropower generation projects, and IDACORP’s holding company expenses.
The table below summarizes the segment information for IDACORP’s utility operations and the total of all other segments, and reconciles this information to total enterprise amounts (in thousands):
Utility
Operations		All
Other		EliminationsConsolidated
Total
2023    
Revenues$1,762,894 $3,462 $— $1,766,356 
Operating income313,379 98 — 313,477 
Other income, net51,424 (46)— 51,378 
Interest income including carrying charges on regulatory assets26,509 4,688 (2,832)28,365 
Equity-method income10,540 1,886 — 12,426 
Interest expense116,117 3,172 (2,832)116,457 
Income before income taxes285,736 3,453 — 289,189 
Income tax expense (benefit)28,926 (1,630)— 27,296 
Net Income attributable to IDACORP, Inc.256,810 4,385 — 261,195 
Total assets8,323,531 228,681 (76,294)8,475,918 
Expenditures for long-lived assets610,913 224 — 611,137 
2022    
Revenues$1,641,040 $2,941 $— $1,643,981 
Operating income327,170 8 — 327,178 
Other income, net33,876 (187)— 33,689 
Interest income including carrying charges on regulatory assets12,556 2,776 (931)14,401 
Equity-method income10,211 1,300 — 11,511 
Interest expense89,038 1,268 (931)89,375 
Income before income taxes294,775 2,629 — 297,404 
Income tax expense (benefit)39,908 (2,064)— 37,844 
Net Income attributable to IDACORP, Inc.254,867 4,115 — 258,982 
Total assets7,411,104 245,762 (113,608)7,543,258 
Expenditures for long-lived assets432,430 159 — 432,589 
2021    
Revenues$1,455,410 $2,674 $— $1,458,084 
Operating income329,568 83 — 329,651 
Other income, net21,243 (138)— 21,105 
Interest income including carrying charges on regulatory assets7,123 216 (47)7,292 
Equity-method income10,211 1,224 — 11,435 
Interest expense86,663 82 (47)86,698 
Income before income taxes281,482 1,302 — 282,784 
Income tax expense (benefit)38,257 (1,345)— 36,912 
Net Income attributable to IDACORP, Inc.243,225 2,325 — 245,550 
Total assets6,990,839 281,999 (62,323)7,210,515 
Expenditures for long-lived assets299,972 27 — 299,999